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(No Modely) PQ H. GRIMM.

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STARCH SBPARATOR.

Patented sept.19, 1882.

UNITED STATES PATENT Ormea.

PAUL H. GRIMM, OF GLEN COVE, NEW YORK, A'SSIGNOR TO THE GLEN COVE MANUFACTURING COMPANY, OF SAME PLACE.

STA RCH-SEPARATO R.

SPECIFICATION forming part of Letters Patent No. 264,688, dated September 19, 1882.

' Application filed July 24,1882. (No model.)

To all whom it may concern:

Cove, in the county of Queens and State ot' New York, have invented a llew and useful Improvement in Starch-Separators, of which the following is a specication.

My invention relates to the kind of starchseparator which comprises a reciprocating screen, into which the water containing the lo amylaceous substance is allowed to run, and through which the finer amylaceous particles pass. intona box or receptacle placed below the screen. In such separators the screen has been supported on swinging arms,which are pivoted to the box or receptacle, or which extend upward from a rock-shaft placed below said box or receptacle, and when thus supported the screen has, in addition to its reciprocating motion, a rising-and-falling motion, due to the zo arc-shaped paths described by the ends of the arms which support it.

My present invention consists ill the combination, with the box or receptacle, the screen, and devices for imparting a reciprocating nlo- 2 5 tion to the screen, of novel devices, hereinafter particularly described, for supporting the screen and giving it the necessary rising-andfalling motion,and which are simpler and more desirable than the rock-shat't and arms hereto- 3o fore used.

In the accompanying drawings, Figure l represents a side elevation of a separator elnbodying my invention. Fig. 2 represents a plan thereof. Fl'g. 3 represents a sectional 3 5 View of one side of the box or receptacle and screen and the devices for supporting the latter, and Fig. 4. represents the supporting devices upon a larger scale.

Similar letters of reference designate corre- 40 sponding parts in all the figures.

A designates the stationary box or receptacle, and A the frame-work of the machine whereby it is supported.

B designates the screen, which consists of a 4 5 rectangular frame, witha bottom of wire-gauze or other reticulated or foraminous material, which is not here shown.

C designates a shatt provided with fast and loose pulleys C C2, over which a belt may be passed for rotating it, and at the ends ot1 the shaft are cranks D, whicll, through rods E, inlpart a reciprocating motion to the screell B.

In lieu ot' the crank-shaft and connectingrods, any other suitable mech anisln may be enlployed to reciprocate the screen.

Both the box or receptacle A and the screen B are inclined, and at the lower elld of the box or receptacle are secured pieces F, the upper surfaces ot' which are grooved orotllerwise prepared to form bearn gs for shoes or runners F', which are attached tothe sides of the screen, and which slide freely on said bearings as the screen is reciprocated.

At the higher end of the box or receptacle it has secured to each side a plate, G, which supports a tilting block or piece, G', that forms a bearing for a roller, H, attached to the side of the screen B.v In this exalnple of my invention the piece or block G' has llpoll its under side a-projection or lug, a, which lits in a recess, b, ot' corresponding form in the piece or plate G, and the projection or lug a forms a t'ulcrum or pivotal point, on which the piece G may rock ortilt from the position shown in full lines in Figs. 1 alld 4 to the position shown in dotted lines in Fig. 4.

The piece or plate G may be provided under the opposite ends of the piece or block G with blocks ot' rubber,c, or other cushions, upon which the ends of the piece or block G' alternately impinge as it rocks or tilts to and fro, and which prevent noise and deaden the shock which would result from the contact of iron with iron. The upper surfaces of the pieces or blocks G are provided with V -shaped 8 5 grooves, and the rollers H have V-shaped peripheries, which flt the grooves and prevent the screen from movement laterally relatively to the box or receptacle A. The pieces or blocks G form bearings, on which the rollers 9o H run back and forth as the screen is reciprocated, and as the rollers pass from one side to the other of the pivotal points of the bearings G the said bearings will tilt or rock, and thus produce the rising-and-falling motion of 95 the screen. The rising-and-falling motion will be sudden, and will terminate with a slight jar as the ends of the bearings G strike the cushions c, which will be beneficial, as it will tend to produce a more rapid separation of the liner amylaceous particles from the coarser.

The rollers H constitute in effect runners, and, instead of the rollers, shoes or runners approximately like those lettered F' may be used.

It will also be evident that if the bearings G and the rollers H or runners were reversed in position, the rollers being ou the box and the tilting blocks G on the screen, the action would be the same. In such case the rollers would constitute the bearings, and the pieces Gf would constitute runners. One tilting or rocking' bearing sind a single roller or runner might be arranged at the higher end of the screen, midway oi' its width, and, in connection with bearings on each side of the screen at its lower end, would properly support the screen.

NVhat I claim as my invention, and desire to secure by Letters Patent, is-

l. The combination, with the box or receptacle A, the screen B, and devices for reciprocating said screen, of one or more tilting 'or rocking bearings, G', and one or more rollers or runners, H, substantially as and for the purpose speciied.

2. The combination, with the box or receptacle A, the screen B, and devices for reciproeating the screen, of `the tilting or rocking bearings G', attached to the box or receptacle, and the rollers or runners H upon the screen, substantially as and for the purpose specied.

3. lhe combination, with the box or receptacle A, screen B, and devices for reciprocating said screen, of the pieces or plates Gr, the tilting or rocking bearings G', the cushions c, and the rollers or runners H, substantially as and for the purpose specified.

PAUL H. GRIMM.

Witnesses:

WM. H. EAsTMENT, E. T. PAYNE. 

